WO2022052929A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2022052929A1
WO2022052929A1 PCT/CN2021/117076 CN2021117076W WO2022052929A1 WO 2022052929 A1 WO2022052929 A1 WO 2022052929A1 CN 2021117076 W CN2021117076 W CN 2021117076W WO 2022052929 A1 WO2022052929 A1 WO 2022052929A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
opening
electronic device
fingerprint
connecting portion
Prior art date
Application number
PCT/CN2021/117076
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
付从华
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP21865983.7A priority Critical patent/EP4213067A4/de
Publication of WO2022052929A1 publication Critical patent/WO2022052929A1/zh
Priority to US18/119,814 priority patent/US20230215210A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G06F1/1658—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories related to the mounting of internal components, e.g. disc drive or any other functional module
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10151—Sensor

Definitions

  • the present application relates to the technical field of communication devices, and in particular, to an electronic device.
  • the under-screen fingerprint recognition module usually includes an interconnected fingerprint sensor and a fingerprint drive unit.
  • the fingerprint drive is provided with components such as a main control chip.
  • the fingerprint drive unit is usually attached.
  • the circuit board of the display screen On the circuit board of the display screen, the fingerprint driving unit and the circuit board of the display screen are connected together through a connector, and the circuit board of the display screen can be connected to the first circuit such as the main board or the sub board of the electronic device through a connecting piece such as a flexible circuit board. board connection to transmit the fingerprint signal and display signal together.
  • the fingerprint driving unit will occupy a large area on the circuit board of the display screen, and because the fingerprint signal and the display signal are both communicated through the same flexible circuit board and connector, resulting in The first circuit board has many design constraints and is difficult to design.
  • the present application discloses an electronic device to solve the problem that in the current electronic device, the fingerprint driving unit occupies a large area on the circuit board of the display screen, and the design of the first circuit board is caused by the simultaneous transmission of the fingerprint signal and the display signal. Problems with more constraints and more difficult design.
  • An embodiment of the present application provides an electronic device, including a display module, a fingerprint identification module and a first circuit board, the display module includes a display screen, a second circuit board and a first connection part, the display screen is connected to a first circuit board the second circuit board is electrically connected, and the second circuit board is electrically connected to the first circuit board through the first connection part;
  • the fingerprint identification module includes a fingerprint sensor, a fingerprint driving unit and a second connecting portion, the fingerprint sensor is arranged on the side of the display screen away from the display surface, the fingerprint sensor and the fingerprint driving unit are spaced apart, and The fingerprint sensor and the fingerprint driving unit are electrically connected to the first circuit board through the second connection portion.
  • the display module includes a display screen, a second circuit board and a first connection part, and the display screen is electrically connected to the second circuit board;
  • the fingerprint recognition module includes a fingerprint sensor, a fingerprint driving unit and a second connection part The fingerprint sensor is arranged on the side of the display screen away from the display surface, so that the electronic device has the fingerprint recognition function under the screen, which improves the user experience of the electronic device, and also enables the electronic device to have a larger display area.
  • the fingerprint sensor and the fingerprint driving unit are electrically connected to the first circuit board of the electronic device through the second connection part, so as to prevent the fingerprint driving unit from occupying the area of the second circuit board in the display module, so as to make the whole of the second circuit board
  • the size is reduced, and the second circuit board in the display module is electrically connected to the first circuit board through the first connection part, so that the fingerprint signal and the display signal in the electronic device are separated from each other and are respectively electrically connected to the first circuit board,
  • the first circuit board needs relatively few constraints during the design process, and the design difficulty is relatively low;
  • the stacking situation between the fingerprint identification module and the display module basically does not occur, and the two are independent of each other, so that the overall thickness of the display module and the fingerprint identification module can be made smaller, In turn, it is beneficial to the development of thin and light electronic devices.
  • FIG. 1 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
  • FIG. 2 is another schematic structural diagram of the electronic device disclosed in the embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a middle frame of the electronic device shown in FIG. 2;
  • FIG. 4 is a schematic structural diagram of still another electronic device disclosed in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a middle frame of the electronic device shown in FIG. 4;
  • FIG. 6 is another schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a middle frame of the electronic device shown in FIG. 6;
  • FIG. 8 is another schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a middle frame of the electronic device shown in FIG. 8.
  • FIG. 10 is a schematic diagram of the electronic device disclosed in the embodiment of the application in another direction;
  • FIG. 11 is an assembly diagram of a part of the structure of the electronic device disclosed in the embodiment of the application.
  • 210-fingerprint sensor 220-fingerprint driving unit, 230-second connection part, 231-first connection segment, 232-second connection segment, 233-third connection segment, 240-second connector,
  • 310-middle frame 311-first opening, 312-second opening, 313-third opening, 320-adhesive layer.
  • an embodiment of the present application discloses an electronic device.
  • the electronic device includes a display module, a fingerprint identification module, and a first circuit board.
  • the first circuit board may be a main board of the electronic device.
  • the first circuit board may also be a sub-board of the electronic device.
  • the display module includes a display screen 110 , a second circuit board 120 and a first connection part 130 , the display screen 110 is electrically connected to the second circuit board 120 , and the display screen 110 can be connected to the second circuit board by metal wires or welding. Structural parameters such as board connection, size and shape of the display screen 110 can be flexible according to actual needs. More specifically, the display screen 110 may be a touch display screen.
  • a display driving circuit may be provided on the second circuit board 120 , and of course, other components may also be provided on the second circuit board 120 .
  • the first connecting portion 130 may be a metal wire or a flexible circuit board.
  • the second circuit board 120 is electrically connected to the first circuit board through the first connecting portion 130, and the second circuit Between the board 120 and the first connection part 130, and between the first connection part 130 and the first circuit board, a fixed connection relationship can be formed by soldering or conductive adhesive bonding, etc., and an electrical connection relationship is formed together.
  • first connection part 130 It is ensured that information can be exchanged between the display module and the first circuit board through the first connection part 130, or, connectors can be provided at opposite ends of the first connection part 130, for example, the first connection part 130 is away from the One end of the two circuit boards 120 may be provided with a first connector 140 , so that the first connection part 130 may be electrically connected to the first circuit board by means of the first connector 140 .
  • the fingerprint identification module includes a fingerprint sensor 210 , a fingerprint driving unit 220 and a second connection part 230 .
  • the fingerprint sensor 210 is disposed on the side of the display screen 110 away from the display surface. Specifically, the fingerprint sensor 210 may be fixed on one side of the display screen 110 by clamping, gluing, or limiting clamping. In order to improve the reliability of the connection between the fingerprint sensor 210 and the display screen 110 , as shown in FIG. 11 , the fingerprint sensor 210 and the display screen 110 may be bonded and fixed together by means of the adhesive layer 320 .
  • the fingerprint sensor 210 is attached to the surface of the display screen 110 as closely as possible, the distance between the fingerprint sensor 210 and the display screen 110 is reduced, the lightness and thinness of the electronic device are improved, and the fingerprint processor 210 and the display screen 110 can be basically removed.
  • the air gap between the two prevents dust from falling between the two, improving the speed and accuracy of fingerprint recognition, thereby improving the user experience.
  • the fingerprint sensor 210 and the fingerprint driving unit 220 are spaced apart, and the size of the space between the two can be determined according to the space in the electronic device, and actual parameters such as the structure and size of the fingerprint sensor 210 and the fingerprint driving unit 220, which are not limited here.
  • the fingerprint driving unit 220 may specifically include functional modules such as a power management module, a logic control module, a data processing module, and a data transmission module.
  • the above modules may be composed of circuit units composed of components such as integrated circuits, inductors, capacitors, and resistors.
  • the fingerprint driving unit 220 may also include other modules or other components.
  • the second connection part 230 can also be a metal wire or a flexible circuit board. In another embodiment of the present application, the second connection part 230 is a flexible circuit board. In this case, the second connection part 230 can be used as a fingerprint driver
  • the carriers of multiple components in the unit 220, components such as integrated circuits, inductors, capacitors, and resistors can be fixed on the second connection portion 230 by welding or conductive adhesive bonding, and the above components are all connected with the second connection portion 230.
  • the connection portion 230 forms an electrical connection relationship.
  • the second connecting part 230 may include a connecting sub-section and an installation sub-section, and the installation sub-section
  • the width of the connecting sub-portion is larger than the width of the connecting sub-portion, and the fingerprint driving unit 220 is arranged on the mounting sub-portion. Since the area of the mounting sub-portion per unit length is larger than that of the connecting sub-portion per unit length, the mounting sub-portion has a larger mounting area.
  • each component in the fingerprint driving unit 220 installed on the installation sub-section has a safe distance that meets the requirements, and can make the distribution of different components in the fingerprint driving unit 220 still relatively concentrated, improving the distance between the components. Collaborative efficiency.
  • the fingerprint sensor 210 is also electrically connected with the second connection part 230 , so that the purpose of electrically connecting the fingerprint sensor 210 and the first circuit board is achieved through the second connection part 230 .
  • opposite ends of the second connecting portion 230 can be respectively connected to the fingerprint sensor 210 and the first circuit board by welding.
  • the second connecting portion 230 is away from the fingerprint sensor.
  • One end of the 210 is mounted with a second connector 240, and the second connector 240 is electrically connected to the first circuit board.
  • the display module includes a display screen 110, a second circuit board 120 and a first connection part 130, and the display screen 110 is electrically connected to the second circuit board 120;
  • the fingerprint recognition module includes a fingerprint sensor 210, a fingerprint The driving unit 220 and the second connecting part 230, the fingerprint sensor 210 is arranged on the side of the display screen 110 away from the display surface, so that the electronic device has the fingerprint recognition function under the screen, which improves the user experience of the electronic device, and also enables the electronic device to have the function of fingerprint recognition under the screen. larger display area.
  • the fingerprint sensor 210 and the fingerprint driving unit 220 are electrically connected to the first circuit board of the electronic device through the second connection portion 230, thereby preventing the fingerprint driving unit 220 from occupying the area on the second circuit board 120 in the display module, so that the first circuit board 120 can be prevented from being occupied by the fingerprint driving unit 220.
  • the overall size of the two circuit boards 120 is reduced, and the second circuit board 120 in the display module is electrically connected to the first circuit board through the first connecting portion 130, so that the fingerprint signal and the display signal in the electronic device are separated from each other, and are respectively It is electrically connected to the first circuit board, and further in the design process of the electronic device, since both the fingerprint signal and the display signal are connected to the first circuit board independently, the first circuit board needs relatively few constraints in the design process , the design difficulty is relatively low; in addition, in the case of using the above technical solution, the fingerprint recognition module and the display module will basically not be stacked, and the two are independent of each other, so that the display module and the fingerprint recognition module can be The overall thickness of the module is smaller, which is conducive to the development of thin and light electronic devices.
  • the electronic device further includes a middle frame 310, and the middle frame 310 can provide certain support and protection for components such as the display screen 110 and the first circuit board in the electronic device.
  • the middle frame 310 may be made of hard materials such as metal or plastic, and the shape and specific size of the middle frame 310 may be determined according to the actual structure of the housing of the electronic device.
  • the display screen 110 is usually arranged on one side of the middle frame 310
  • the first circuit board is usually arranged on the side of the middle frame 310 away from the display screen 110 .
  • the edge of the middle frame 310 protrudes to be electrically connected with the first circuit board on the other side of the middle frame 310 .
  • the middle frame 310 is provided with an opening, and both the first connecting portion 130 and the second connecting portion 230 located on one side of the middle frame 310 can protrude through the opening on the middle frame 310, and are connected to the middle frame 310.
  • the first circuit board on the other side of 310 is electrically connected.
  • the first connecting portion 130 is a bar-shaped structure, and the opening can be disposed toward the first connecting portion 130 to shorten the distance between the opening and the second circuit board 120 , thereby shortening the length of the first connecting portion 130 .
  • the end of the second connection portion 230 away from the fingerprint sensor 210 can also be arranged in parallel with the first connection portion 130, so that the end of the first connection portion 130 and the end of the second connection portion 230 are inserted into the middle frame.
  • the opening of 310 since at least part of both are strip-shaped structural members, in the process of passing the first connecting portion 130 and the second connecting portion 230 through the opening, only the first connecting portion 130 and the second connecting portion 130 are connected.
  • the ends of the connecting parts 230 only need to be aligned with the openings, and there is basically no need for the first connecting part 130 and the second connecting part 230 to have a relatively large bending deformation, so as to ensure that both the first connecting part 130 and the second connecting part 230 have The longer service life can also reduce the difficulty of assembling between the first connecting portion 130 and the second connecting portion 230 and the opening of the middle frame 310 to a certain extent.
  • the second connecting portion 230 may be arranged in parallel with the first connecting portion 130 , or the second connecting portion 230 may be formed in a strip shape as a whole.
  • the structural member is arranged in parallel with the first connecting portion 130 .
  • the opening can be formed by drilling, etc., or, in the process of forming the middle frame 310, the middle frame 310 with the opening can be directly formed by changing the structure of the mold. In addition, the size, number and setting position of the opening can be determined according to the actual situation. .
  • the middle frame 310 is provided in the electronic device, optionally, as shown in FIGS. 2-5 , the middle frame 310 is provided with first openings 311 and second openings 312 spaced apart from each other.
  • the first connection part 130 can be electrically connected to the first circuit board through the first opening 311
  • the second connection part 230 can be electrically connected to the first circuit board through the second opening 312.
  • Both the first connecting portion 130 and the second connecting portion 230 can easily extend from one side of the middle frame 310 to the other side of the middle frame 310 , and are both electrically connected to the first circuit board.
  • the width and height of the first opening 311 may be determined according to the width and thickness of the first connecting portion 130, and the size of the first opening 311 may not exceed the size of the first connecting portion 130 in the corresponding direction so as to Under the condition that the first connecting portion 130 can pass through the first opening 311 , it is ensured that the middle frame 310 has high structural strength.
  • the size of the second opening 312 can also be determined according to the size of the second connecting portion 230 in the corresponding direction.
  • first connecting portion 130 and/or the second connecting portion 230 are provided with components or other components, etc., and need to pass through the first opening 311 and/or the second opening 312, the first connecting portion 130 and/or the second connecting portion 230 can be The size of the first opening 311 and/or the second opening 312 is correspondingly enlarged, which can be flexibly changed by those skilled in the art according to the actual situation.
  • the part of the area where the first opening 311 and the second opening 312 are located on the middle frame can be reinforced to a certain extent by means of the connection structure between them.
  • the strength of the structure ensures that the structural strength at any position on the middle frame 310 is relatively large.
  • the first opening 311 and the second opening 312 may be respectively disposed on opposite sides of the middle frame 310 , in this case, the first connecting part 130 and the second connecting part
  • the extending directions of the portions 230 are opposite, the first connecting portion 130 extends toward one side of the display screen 110 , and the second connecting portion 230 extends toward the other side of the display screen 110 .
  • the distance between the first opening 311 and the second opening 312 can be relatively large, and since the two are located on different sides of the middle frame 310, the middle frame 310 can be set on the The influence of the first opening 311 and the second opening 312 on the local structural strength of the middle frame 310 is relatively small, so as to further ensure better uniformity of the overall structural strength of the middle frame 310 .
  • a filling structure can also be provided in the gap between the first opening 311 and the first connecting portion 130 , and/or a filling structure can be provided in the gap between the second opening 312 and the second connecting portion 230 , so as to further strengthen the middle Structural strength of frame 310.
  • the first opening 311 and the second opening 312 are located on the same side of the middle frame 310 , in this case, the first connecting part 130 and the second opening 312
  • the extending direction of the connecting portion 230 is the same, and both extend toward the same side of the display screen 110 and pass through the first opening 311 and the second opening 312 respectively, so as to be electrically connected to the first circuit board.
  • the first opening 311 and the second opening 312 are not necessarily provided at the side edge of the middle frame 310 , but may also be provided at other positions in the middle frame 310 near the edge.
  • the first connecting portion 130 and the second connecting portion 230 extend in the same direction, in aligning the first connecting portion 130 and the first opening 311 and aligning the second connecting portion 230 and the second opening 312
  • one group of the The space on one side of the circuit board 120 makes the overall size of the intermediate structure composed of the second circuit board 120, the fingerprint sensor 210, the first connecting part 130 and the second connecting part 230 relatively small, which is convenient for storage and transportation.
  • the middle frame 310 may also be provided with a third opening 313, and both the first connecting portion 130 and the second connecting portion 230 are electrically connected to the first circuit board through the third opening 313, that is, In other words, the first connecting portion 130 and the second connecting portion 230 are pierced through the same opening to the other side of the middle frame 310.
  • the assembly difficulty of the electronic device can be further reduced, and during the processing, the opening The difficulty and accuracy requirements of one opening are generally less than the difficulty and accuracy requirements of opening two openings.
  • the first connecting part 130 and the second connecting part 230 may be spaced apart, wherein the third opening 313 may be provided in the middle frame 310
  • the middle frame is located on the side where the width direction of the display screen 110 is located, and may also be set on the side where the length direction of the display screen 110 is located in the middle frame 310 .
  • the extending direction of the first connecting portion 130 is the width direction of the display screen 110
  • the direction perpendicular to the extending direction of the display screen 110 and the first connecting portion 130 is the width direction of the display screen 110 , that is, the first connecting portion 130 and the second connecting portion 230 may be spaced along the length direction of the display screen 110 .
  • the projections of the first connecting portion 130 and the second connecting portion 230 in the direction perpendicular to the display screen 110 do not overlap.
  • the thickness direction of the display screen 110 may be the direction perpendicular to the paper surface in FIG. 7
  • the extending direction of the first connecting portion 130 that is, the width direction of the display screen 110 may be the direction X in FIG. 7
  • the length of the display screen 110 The direction may be the direction Y in FIG. 7 .
  • the size of the third opening 313 in the length direction of the display screen 110 is relatively large, which can reduce the difficulty of piercing the first connecting part 130 and the second connecting part 230 to a certain extent, and there is no need for
  • the positions of the first connecting portion 130 and the second connecting portion 230 are specially adjusted, and the size of the third opening 313 only needs to be determined according to the distance between the first connecting portion 130 and the second connecting portion 230 in the length direction of the display screen 110, and then the size of the third opening 313 is determined.
  • the first connection part 130 and the second connection part 230 can be drawn out from the same side of the fingerprint sensor 210 and the second circuit board 120 , which can reduce the overall processing difficulty of the electronic device to a certain extent.
  • the third opening 313 can be opened on the side of the length direction of the display screen 110 , then the first connection part 130 extends along the width direction of the display screen 110 , and the first connection part 130 and the second connection part 230 pass through the third In the case where the opening 313 passes through, optionally, as shown in FIGS. 8 and 9 , at least a part of the end of the second connecting portion 230 away from the fingerprint sensor 210 is stacked with the first connecting portion 130 along the thickness direction of the display screen 110 .
  • the thicknesses of the first connecting portion 130 and the second connecting portion 230 are generally small, even if at least part of the two are arranged in the above-mentioned stacking manner, it will basically not affect the composition of the display module and the fingerprint recognition module. overall thickness.
  • the end portions of the first connecting portion 130 and the second connecting portion 230 may be provided with connectors. Generally speaking, in the thickness direction of the display screen 110 , the size of the connectors is larger than that of the first connecting portion 130 and the second connecting portion 230 .
  • the size of the third opening 313 in the thickness direction of the display screen 110 can be correspondingly designed according to the size of the connector to ensure that the connector can pass from one side of the third opening 313. Pass through to the other side of the third opening 313 .
  • the opposite sides of the third opening 313 may be regarded as the inner side and the outer side of the middle frame 310 , and may also be regarded as the front side and the back side of the middle frame 310 .
  • an end of the first connection portion 130 facing away from the second circuit board 120 is provided with a first connector 140 , and the second circuit board 120 is electrically connected to the first circuit board through the first connector 140 ; correspondingly, the second connection The end of the part 230 facing away from the fingerprint sensor 210 is provided with a second connector 240 , and the fingerprint sensor 210 is electrically connected to the first circuit board through the second connector 240 to further reduce the difficulty of assembly and maintenance of components in the electronic device.
  • the first connector 140 and the second connector 240 may be distributed along the extending direction of the first connecting portion 130 , in this case, the first connector 140 and the second connector 240 are staggered and distributed, so that in the process of assembling the electronic device, one of the first connector 140 and the second connector 240 can be passed through the third opening 313 first, and then the other Through the third opening 313, the size of the third opening 313 in the thickness direction of the display screen 110 can be smaller than the size of the first connector 140 and the second connector 240 in the process of designing the third opening 313 In sum, this can further reduce the size of the third opening 313 in the thickness direction of the display screen 110 , thereby enhancing the overall structural strength of the middle frame 310 .
  • the lengths of the first connecting portion 130 and the second connecting portion 230 extending from the middle frame 310 may also be different.
  • the connecting portion 130 and the second connecting portion 230 pass through the third opening 313 at the same time, and a double-sided tape with less viscosity can be provided between the first connecting portion 130 and the second connecting portion 230, so that the first connecting portion 130 It temporarily forms a whole with the second connecting portion 230.
  • the double-sided adhesive tape can be peeled off, so that the first connecting portion 130 and the second connecting portion 230 are separated to separate the electrical connected at different locations on the first circuit board.
  • the second circuit board 120 and the fingerprint sensor 210 are both arranged on the side of the display screen 110 away from the display surface. In this case, the thickness of the whole composed of the display screen 110 , the second circuit board 120 and the fingerprint sensor 210 can be reduced.
  • the first connecting portion 130 can be a strip-shaped structural member, and the second connecting portion 230 can be bent.
  • the second connecting portion 230 includes a first connecting section 231 , a second connecting section 232 and a third connecting section 233 .
  • the first connection segment 231 is connected to the fingerprint sensor 210 , and both the first connection segment 231 and the third connection segment 233 extend along the extending direction of the first connection portion 130 , that is, the first connection segment 231 and the third connection segment 233 Both are parallel to the first connecting portion 130 .
  • the third connecting section 233 is connected to the first connecting section 231 through the second connecting section 232.
  • the second connecting section 232 and the first connecting section 231 may be perpendicular to each other, or may be inclined relative to the first connecting section 231;
  • a second connector 240 is provided at one end of the connecting segment 233 facing away from the second connecting segment 232 .
  • both the first connecting portion 130 and the second connecting portion 230 can pass through the opening.
  • the fingerprint driving unit 220 usually includes a plurality of components, and the plurality of components need to use
  • the structures such as the second connecting portion 230 form a whole, so that the fingerprint driving unit 220 needs to occupy the space on the side of the second connecting portion 230 away from the display screen 110 . Further, as shown in FIG. 1 , FIG. 2 , FIG. 4 , FIG. 6 and FIG.
  • a part of the second connecting part 230 is connected to the fingerprint sensor 210 and is located on one side of the opening, and another part of the second connecting part 230 is fixed with the fingerprint driving unit 220 and is located on the other side of the opening.
  • the fingerprint driving unit 220 and the fingerprint sensor 210 can be disposed on opposite sides of the middle frame 310, respectively, so that the distance between the middle frame 310 and the display screen 110 can be reduced, and the components in the electronic device can be compacted. Better performance and improved space utilization in electronic equipment.
  • the second circuit board 120 does not occupy the space between the display screen 110 and the middle frame 310 , so that the bonding height of the display screen 110 and the middle frame 310 can be reduced.
  • the display screen 110 and the middle frame 310 may be arranged in close contact, so that the distance between the display screen 110 and the middle frame 310 is substantially 0, thereby further reducing the thickness of the electronic device.
  • the electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, or a wearable device.
  • the electronic device may also be other devices, which are not limited in this embodiment of the present application.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
PCT/CN2021/117076 2020-09-10 2021-09-08 电子设备 WO2022052929A1 (zh)

Priority Applications (2)

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EP21865983.7A EP4213067A4 (de) 2020-09-10 2021-09-08 Elektronische vorrichtung
US18/119,814 US20230215210A1 (en) 2020-09-10 2023-03-09 Electronic device

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CN202010949366.9A CN112163464A (zh) 2020-09-10 2020-09-10 电子设备
CN202010949366.9 2020-09-10

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USD978847S1 (en) * 2018-02-02 2023-02-21 Samsung Display Co., Ltd. Display module
CN112163464A (zh) * 2020-09-10 2021-01-01 维沃移动通信有限公司 电子设备
CN112163463B (zh) * 2020-09-10 2024-07-23 维沃移动通信有限公司 电子设备

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EP4213067A1 (de) 2023-07-19
US20230215210A1 (en) 2023-07-06
CN112163464A (zh) 2021-01-01

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